Kraft is the historian for the “Cultural Convergence: Columbia Heights trail” and author of the Columbia Heights chapter of the book “Washington at Home.” His field of expertise is Washington and Saturday will guide the afternoon “Columbia Heights Historical Drinkabout” winter walk. Walkers will not only learn about history and the development of one of D.C.’s emerging neighborhoods, but they’ll also warm up in its local eateries and bars. Because of the string of snowstorms, though, Kraft suggested potential walkers check washingtonwalks.com for updates on the tour before putting on their winter gear and heading for Columbia Heights.